Eradication of Evil

We can never eliminate tragedy – even in a perfect world tragedy will exist.

Evil, on the other hand, as it is created by us, is well within our control to eliminate.

So, how do we eliminate evil?  Are there fundamental actions we can take that will help to eliminate evil from the world?

If evil is not a force in itself but an absence of good (just as darkness is absence of light) then it would stand to reason that there must be things we can do that will increase ‘the light.’

There are a thousand hacking at the branches of evil to one who is striking at the root.
Henry David Thoreau

I wonder what we can actually do to strike at the root of evil and let goodness flourish?